??? timelib_time *t, *now;
??? timelib_tzinfo *tzi;PHP教程

??? tzi = get_timezone_info(TSRMLS_C);PHP教程

??? if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, ZEND_NUM_ARGS() TSRMLS_CC, “sl”, &times, &time_len, &preset_ts) != FAILURE) {
??????? /* We have an initial timestamp */
??????? now = timelib_time_ctor();PHP教程

??????? initial_ts = emalloc(25);
??????? snprintf(initial_ts, 24, “@%ld UTC”, preset_ts);
??????? t = timelib_strtotime(initial_ts, strlen(initial_ts), NULL, DATE_TIMEZONEDB, php_date_parse_tzfile_wrapper); /* we ignore the error here, as this should never fail */
??????? timelib_update_ts(t, tzi);
??????? now->tz_info = tzi;
??????? now->zone_type = TIMELIB_ZONETYPE_ID;
??????? timelib_unixtime2local(now, t->sse);
??????? timelib_time_dtor(t);
??????? efree(initial_ts);
??? } else if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, “s|l”, &times, &time_len, &preset_ts) != FAILURE) {
??????? /* We have no initial timestamp */
??????? now = timelib_time_ctor();
??????? now->tz_info = tzi;
??????? now->zone_type = TIMELIB_ZONETYPE_ID;
??????? timelib_unixtime2local(now, (timelib_sll) time(NULL));
??? } else {
??????? RETURN_FALSE;
??? }PHP教程

??? if (!time_len) {
??????? timelib_time_dtor(now);???
??????? RETURN_FALSE;
??? }PHP教程

??? t = timelib_strtotime(times, time_len, &error, DATE_TIMEZONEDB, php_date_parse_tzfile_wrapper);
??? error1 = error->error_count;
??? timelib_error_container_dtor(error);
??? timelib_fill_holes(t, now, TIMELIB_NO_CLONE);
??? timelib_update_ts(t, tzi);
??? ts = timelib_date_to_int(t, &error2);PHP教程

??? timelib_time_dtor(now);
??? timelib_time_dtor(t);PHP教程

??? if (error1 || error2) {
??????? RETURN_FALSE;
??? } else {
??????? RETURN_LONG(ts);
??? }
}
/* }}} */
PHP教程

??? //? 調(diào)用相關(guān)函數(shù),實(shí)現(xiàn)字符串的解析和結(jié)果計(jì)算PHP教程

??? //? 返回結(jié)果
}
PHP教程

??? s->time->relative.d = -1;
??? TIMELIB_DEINIT;
??? return TIMELIB_RELATIVE;
}
PHP教程

??? struct timelib_time *time;
??? const timelib_tzdb? *tzdb;
} Scanner;PHP教程

typedef struct timelib_time {
??? timelib_sll????? y, m, d;???? /* Year, Month, Day */
??? timelib_sll????? h, i, s;???? /* Hour, mInute, Second */
??? double?????????? f;?????????? /* Fraction */
??? int????????????? z;?????????? /* GMT offset in minutes */
??? char??????????? *tz_abbr;???? /* Timezone abbreviation (display only) */
??? timelib_tzinfo? *tz_info;???? /* Timezone structure */
??? signed int?????? dst;???????? /* Flag if we were parsing a DST zone */
??? timelib_rel_time relative;PHP教程

??? timelib_sll????? sse;???????? /* Seconds since epoch */PHP教程

??? unsigned int?? have_time, have_date, have_zone, have_relative, have_weeknr_day;PHP教程

??? unsigned int?? sse_uptodate; /* !0 if the sse member is up to date with the date/time members */
??? unsigned int?? tim_uptodate; /* !0 if the date/time members are up to date with the sse member */
??? unsigned int?? is_localtime; /*? 1 if the current struct represents localtime, 0 if it is in GMT */
??? unsigned int?? zone_type;??? /*? 1 time offset,
????????????????????????????????? *? 3 TimeZone identifier,
????????????????????????????????? *? 2 TimeZone abbreviation */
} timelib_time;PHP教程

typedef struct timelib_rel_time {
??? timelib_sll y, m, d; /* Years, Months and Days */
??? timelib_sll h, i, s; /* Hours, mInutes and Seconds */PHP教程

??? int weekday; /* Stores the day in 'next monday' */
??? int weekday_behavior; /* 0: the current day should *not* be counted when advancing forwards; 1: the current day *should* be counted */PHP教程

??? int first_last_day_of;
??? int invert; /* Whether the difference should be inverted */
??? timelib_sll days; /* Contains the number of *days*, instead of Y-M-D differences */PHP教程

??? timelib_special? special;
??? unsigned int?? have_weekday_relative, have_special_relative;
} timelib_rel_time;
PHP教程

relnumber = ([+-]*[ \t]*[0-9]+);
relative = relnumber space? (reltextunit | 'week' );
PHP教程